Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: August 2016
Authors: Hubert A. Gasteiger, Till Günther, Nicolas Billot, Jörg Schuster, Joscha Schnell, Franz Benjamin Spingler
All production steps in the process chain of lithium-ion batteries, especially during electrode manufacturing, are strongly interlinked and as a whole determine the electrochemical and mechanical properties of the lithium-ion cell [5].
Nonlinearities can occur during cell assembly: Depending on the mechanical properties established during calendering, electrodes may be misaligned during electrode tailoring and handling, resulting in skewed stacks and poor welding quality.
In order to achieve the desired electrode properties, the process of making electrodes needs to be responsive to the characteristics of the primary materials: The particle sizes as well as the type of solvent influence, the required mixing energy, the type of foil (rolled or electrodeposited copper or aluminum) with its specific surface properties has an impact on the wetting behaviour during coating, foil thickness impacts the mechanical properties of the electrode and thus the calendering process and so on.
In order to examine the effect of the dry mixing step on the mechanical properties of the electrode, the bending capability of the coated electrodes was measured by means of an in-house mandrel-bend test, adhesion strength with a pull-off test [14].
Even if a high quality slurry is prepared in the mixing step, too rapid drying can lead to a demixing of the solid particles and the soluble binder, affecting the adhesion and cohesion strength of the electrode.
Online since: June 2007
Authors: Guo Dong Wang, Jian Zhong Xu, Dian Yao Gong, Xiao Hui Cai, Hui Zheng, Xianghua Liu
The precision of finishing temperature effects not only directly the setting of draught pressure, shape of strip, load distribution and the strip thickness precision at finishing rolling exit but also structure properties of hot rolling and products[1-4].
The structure and precision of the setting model are important for finishing temperature control. 1 Finishing Temperature Control and the Facilities Water cooling is a economic method for steel TMCP, steel finishing temperature control and coiling temperature control are important to product mechanical properties[�,1�] as shown in Fig. 1.
� Fig.2 Layout of facilities of finishing temperature control 2 Speed Setup of Finishing Rolling The running velocity of strip in finishing mill is the main factor, which affects the heat transfer in the inter-stands, as well as affects the micro-tracing precision of the strip sample at the inter-stands.
The inter-stands distance is fixed, the strip has the new thickness and the length after each stand, as so on, these factors make the inter-stands micro-tracing difficult.
Mechanical Working and Steel Processing Conference Proceedings.
Online since: June 2011
Authors: Diana A. Lados, Brendan F. Chenelle
In this study, various applications, processes, and resulting properties of friction stir welds have been explored.
Second, tensile properties and fatigue crack growth mechanisms in friction stir welded 6061-T6 alloys were investigated.
This is an important consideration for welding alloys in an age-hardened state as degradation of peak mechanical properties is partially a function of maximum weld temperature [1-3].
The typical FSW zones are shown in Fig. 1(a): the central weld nugget characterized by a fine dynamically recrystallized grain structure (DXZ), the thermo-mechanically affected zone (TMAZ, characteristic to FSW), and the heat affected zone (HAZ).
After the ACR closure correction, there are still differences between the thresholds of the base and FSW materials indicating that there are other factors besides closure, such as the microhardness and grain size of the material, that have an effect on the threshold behavior.
Online since: July 2015
Authors: N. Chockappan, K. Subrahmanya, K. Vadivuchezhian
Strain measurement from the strain gauge is partially affected by carrier and adhesive materials and their thickness.
Younis et al. [4] studied the strain gauge backing effects on measuring steep strain gradient and the principal sources of error that influence the measurement of stress concentration factors.
Mechanical Characterization of Adhesives There are wide ranges of test methods available to evaluate the performance of adhesives.
In the present work, the mechanical properties of adhesives were obtained from testing bulk adhesive specimens, as they give more accurate results than adhesive bonded joints.
Conclusion Adhesive material properties were obtained from tension test on bulk adhesive specimen.
Online since: October 2008
Authors: Zheng Xu, Shou Ci Lu
The humidity of the powder not only affects the charge of the powder, but also affects the dispersion degree of the powder. 1 Introduction The dispersion of powder is closely related to the powder production and utilization.
Although the surface modification enables the ultrafine particles to anti-aggregation perpetually, the original properties of particles have also been changed at the same time.
This makes the value of the dispersion degree affected by operation factors.
This result tells us the space between electrodes is an important factor when you design a dispersion device.
The moisture of powder is the major effect factor to the electrostatic dispersion.
Online since: October 2018
Authors: Xiao Meng Guo, Peng Zhang, Xu Feng Zhang, Jiang Meng, Xue Fen Zhao, Qing Heng Zeng, Qing Wei Dai
Through metallographic analysis, mechanical properties test, high temperature and high pressure autoclave researching, the effect of microstructure and properties on corrosion resistance of the material was studied.
The purpose of this study is to find out the influence of different chromium content on the microstructure and mechanical properties of steel, and its influence on corrosion resistance, so as to provide a theoretical basis for rational material selection in actual production.
Previous studies have shown that the diversification of microstructure and mechanical properties could be caused by the difference of the chemical composition and processing mode of the tube, which would affect the corrosion resistance of the material[13-15].
Another factor is that carbon content affects the existence of chromium atoms.
Considering the economic factors, the 3Cr alloy can also be considered as a priority.
Online since: February 2011
Authors: Fei Wang, Guo Wei Wang, Guan Long Yan
Regardless of how many factors affect the composite elastic modulus, the elastic modulus can be obtained that meet the engineering requirement under the condition of safety using.
Therefore during the process of temperature changing, its mechanical property appears as viscosity-elastic.
[3] Yan Guanlong, The Study of Energy Consumption and Several Mechanical Properties of Steel-Plastic Composite Heating Buried Pipe Taiyuan: Taiyuan University of Technology: (2010) p.40-42
[4] Wang Fei, The Experiment of Buried-heating Sand-boxed Experiment Platform Development and Mechanical Properties.
An Experimental Study on the Friction Factor of Large Diameter Precast Buried Heat in Pipes.
Online since: November 2013
Authors: Farzad Nasirpouri, Mohammad Reza Sanaeian
These materials in the form of bulk nanostructured structures or films have become important in many technologies due to their improved physical, chemical and mechanical properties [2, 3].
The factors influencing the hardness of coatings included grain size, internal stress and the cavities.
Based on previous studies, the formation of passive layer on the surface is one of the factors that affect the corrosion properties of nickel coatings.
Al-Hadhrami, Microstructure and surface mechanical properties of pulse electrodeposited nickel, Appl.
Erb, Electrodeposited nanocrystals: synthesis, structure, properties and future Applications, Can.
Online since: June 2012
Authors: Da Chun Yang
This paper puts forward and analyses the mechanical properties and forming mechanism of the layer.
Introduction The casting surface is required with some special properties in many cases, such as wear-resistance, corrosion-resistance, etc.
This way may change microstructures of the casting surface and improve its mechanical properties due to interaction of the molten metal and ceramic particles.
As further investigation on material preparation and mechanical properties, it was used to research and develop composite materials of the casting surface [1-3].
Carbon content of the high boron steel casting also is another important element which determines its mechanical properties.
Online since: June 2011
Authors: G. Palumbo, Marco Brandizzi, G. Cervelli, M. Fracchiolla
Tensile tests were carried out using the optical strain measurement system Aramis3D, in order to determine the mechanical behaviour of the alloy and to investigate the anisotropy of such alloy.
The last ones recently attracted much attention due to the extremely competitive strength/weight ratio, even if such a material is still affected by high cost.
Material Characterization Mechanical properties of Ti-6Al-4V were evaluated by means of tensile tests carried out on specimens extracted from three different orientations (q): 0°, 45° and 90° with respect to the rolling direction.
In order to design the SPIF for producing a sheet metal part, main parameters affecting the SPIF process were investigated by means of mechanical FE simulations using ABAQUS/Explicit (v.66); the attention was focused on a simple but not axial-symmetric shape (a truncated pyramid).
It is also important to underline that, if a large pitch value is decided to be used (for example with the aim of reducing the forming time), the adoption of a punch diameter increased using the same factor, can produce similar results in terms of thinning and quality of surface.
Showing 15081 to 15090 of 26166 items